Momwe maginito a neodymium amapangira

Tidzafotokoza momweMaginito a NdFeBamapangidwa ndi kufotokozera kosavuta. Maginito a neodymium ndi maginito okhazikika opangidwa kuchokera ku alloy ya neodymium, iron, ndi boron kuti apange kapangidwe ka kristalo ka Nd2Fe14B tetragonal. Maginito a neodymium opangidwa ndi sintered amapangidwa ndi vacuum kutentha tinthu tating'onoting'ono ta rare earth metal ngati zopangira mu uvuni. Tikapeza zopangira, tidzachita masitepe 9 kuti tipange maginito a NdFeB ndipo pamapeto pake tipanga zinthu zomalizidwa.

Konzani zipangizo zochitira zinthu, kusungunula, kugaya, kukanikiza, kupukuta, kupangira, kuphimba, kuyika maginito, ndi kuyang'anira.

Konzani zipangizo zochitirapo kanthu

Maginito a neodymium omwe ali ndi mankhwala ndi Nd2Fe14B.

Maginito nthawi zambiri amakhala ndi Nd ndi B, ndipo maginito omalizidwa nthawi zambiri amakhala ndi malo osakhala ndi maginito a Nd ndi B mu tirigu, omwe ali ndi tinthu tambiri ta Nd2Fe14B. tomwe timakhala ndi maginito ambiri. Zinthu zina zingapo zapadziko lapansi zitha kuwonjezeredwa kuti zilowe m'malo mwa neodymium pang'ono: dysprosium, terbium, gadolinium, holmium, lanthanum, ndi cerium. Mkuwa, cobalt, aluminiyamu, gallium ndi niobium zitha kuwonjezeredwa kuti ziwongolere mawonekedwe ena a maginito. Ndizofala kugwiritsa ntchito Co ndi Dy pamodzi. Zinthu zonse zopangira maginito a kalasi yosankhidwa zimayikidwa mu uvuni wa vacuum induction, zimatenthedwa ndikusungunuka kuti zipange zinthu za alloy.

Kusungunuka

Zipangizo zopangira ziyenera kusungunuka mu uvuni wa vacuum induction kuti zipange Nd2Fe14B alloy. Chogulitsacho chimatenthedwa popanga vortex, yonse pansi pa vacuum kuti zisaipitse kulowa mu reaction. Chomaliza cha sitepe iyi ndi pepala lopyapyala (SC sheet) lopangidwa ndi makristaro a Nd2Fe14B ofanana. Njira yosungunula iyenera kuchitika munthawi yochepa kwambiri kuti ipewe kusungunuka kwambiri kwa zitsulo za rare earth.

Kugaya

Njira yopangira mphero ya masitepe awiri imagwiritsidwa ntchito popanga zinthu. Gawo loyamba, lotchedwa hydrogen detonation, limaphatikizapo momwe hydrogen ndi neodymium zimagwirira ntchito ndi alloy, kuswa ma SC flakes kukhala tinthu tating'onoting'ono. Gawo lachiwiri, lotchedwa jet milling, limasintha tinthu ta Nd2Fe14B kukhala tinthu tating'onoting'ono, tomwe timakhala ndi mainchesi kuyambira 2-5μm. Jet milling imachepetsa zinthu zomwe zatuluka kukhala ufa wa tinthu tating'onoting'ono kwambiri. Kukula kwa tinthu tating'onoting'ono pakati pa tinthu tating'onoting'ono ndi pafupifupi ma microns atatu.

Kukanikiza

Ufa wa NdFeB umakanikizidwa kukhala chinthu cholimba chomwe chili mu mawonekedwe omwe mukufuna mu mphamvu ya maginito yamphamvu. Cholimba chokanikizidwa chidzakhala ndi njira yabwino yoyendetsera maginito. Mu njira yotchedwa die-upsetting, ufawo umakanikizidwa kukhala chinthu cholimba mu mphamvu ya die pafupifupi 725°C. Kenako cholimbacho chimayikidwa mu nkhungu yachiwiri, komwe chimakanikizidwa kukhala mawonekedwe okulirapo, pafupifupi theka la kutalika kwake koyambirira. Izi zimapangitsa kuti njira yabwino yoyendetsera maginito ikhale yofanana ndi njira yotulutsira. Pa mawonekedwe ena, pali njira zomwe zimaphatikizapo ma clamps omwe amapanga mphamvu ya maginito panthawi yokanikizira kuti agwirizane ndi tinthu tating'onoting'ono.

Kusakaniza

Zinthu zolimba za NdFeB zokanikizidwa ziyenera kusinjidwa kuti zipange ma block a NdFeB. Zinthuzo zimakanikizidwa kutentha kwambiri (mpaka 1080°C) pansi pa malo osungunuka a zinthuzo mpaka tinthu take titagwirizana. Njira yosinjirira imakhala ndi magawo atatu: kuchotsedwa kwa hydrogen, kusinjirira ndi kutenthetsa.

Kukonza Machining

Maginito opangidwa ndi sintered amadulidwa m'mawonekedwe ndi kukula komwe mukufuna pogwiritsa ntchito njira yopukutira. Kawirikawiri, mawonekedwe ovuta otchedwa mawonekedwe osakhazikika amapangidwa ndi machining amagetsi (EDM). Chifukwa cha mtengo wokwera wa zinthu, kutayika kwa zinthu chifukwa cha machining kumachepetsedwa. Huizhou Fullzen Technology ndi yabwino kwambiri popanga maginito osakhazikika.

Kuphimba/Kuphimba

NdFeB yosaphimbidwa imawonongeka kwambiri ndipo imataya mphamvu yake ya maginito mwachangu ikanyowa. Chifukwa chake, maginito onse a neodymium omwe amapezeka pamsika amafunika kuphimbidwa. Maginito amodzi amapakidwa m'magawo atatu: nickel, copper ndi nickel. Kuti mudziwe mitundu ina ya kuphimbidwa, dinani "Lumikizanani Nafe".

Kukhazikitsa maginito

Maginito amaikidwa mu cholumikizira chomwe chimayika maginito ku mphamvu yamphamvu kwambiri yamaginito kwa kanthawi kochepa. Kwenikweni ndi chozungulira chachikulu chomwe chimazunguliridwa ndi maginito. Zipangizo zamaginito zimagwiritsa ntchito ma capacitor banks ndi ma voltages okwera kwambiri kuti zipeze mphamvu yamphamvu kwambiri pakapita nthawi yochepa.

Kuyendera

Yang'anani mtundu wa maginito omwe amachokera kuti muwone ngati ali ndi makhalidwe osiyanasiyana. Pulojekiti yoyezera digito imatsimikizira kukula kwake. Makina oyezera makulidwe a kupaka pogwiritsa ntchito ukadaulo wa X-ray fluorescence amatsimikizira makulidwe a kupaka. Kuyesa pafupipafupi mu mayeso a salt spray ndi pressure cooker kumatsimikiziranso momwe kupaka kumagwirira ntchito. Mapu a hysteresis amayesa BH curve ya maginito, kutsimikizira kuti ali ndi maginito okwanira, monga momwe zimayembekezeredwa pagulu la maginito.

Pomaliza tinapeza chinthu chabwino kwambiri cha maginito.